42453243 has 24 divisors (see below), whose sum is σ = 71076096. Its totient is φ = 23914800.

The previous prime is 42453227. The next prime is 42453247. The reversal of 42453243 is 34235424.

It is not a de Polignac number, because 42453243 - 2⁴ = 42453227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42453247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (2961504).

Almost surely, 2^42453243 is an apocalyptic number.

42453243 is a deficient number, since it is larger than the sum of its proper divisors (28622853).

42453243 is a wasteful number, since it uses less digits than its factorization.

42453243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575 (or 9572 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 42453243 is about 6515.6153201367. The cubic root of 42453243 is about 348.8485781377.

Adding to 42453243 its reverse (34235424), we get a palindrome (76688667).

The spelling of 42453243 in words is "forty-two million, four hundred fifty-three thousand, two hundred forty-three".